tabbywitherite84
23.10.2019 •
Mathematics
For the following scenarios, • describe what the mean represents, and • set up h0 and ha related to (i.e. what hypotheses would you test to assess the specification/claim/belief? ) do not perform the hypothesis tests. a. a random sample of 30 pieces of acetate fiber has a sample mean absorbency of 15% with a sample standard deviation of 1.5%. is there strong evidence that this fiber has a true mean absorbency of more than 12%? b. a manufacturer of a synthetic fishing line claims that its product has a mean breaking strength of at least 9 kilograms. a random sample of n=20 fishing line specimens yields a sample average strength of 8.5 kilograms with sample standard deviation of 0.65 kilogram.
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